Tropical Fish Keeping banner

1 - 16 of 16 Posts

·
Registered
Joined
·
346 Posts
Discussion Starter #1
I am planning to start a 30 gallon tank. I will speed up the cycling process with live plants, some old filter media, and mix in sand from my established tank. I will cycle the tank using two mollies and also some shrimp for algae control.
So, the question: The rule is that you should only add 1-4 fish at a time so that you don't mess up the water chemistry. The fish that will be in this tank are hatchetfish, which absolutely need to be in groups of six or more. SO, since the mollies will return to their own tank once the hatchets are about to go in, will that be ok? hatchetfish have small bio-loads, whereas mollies have big bio-loads. I'd guess that a molly poops 3x as much as a hatchetfish! So, taking out the mollies and shrimp, and adding the 8 hatchets would only change the bioload of the tank by the equivalent of about 3 or 4 fish... right? Sorry if that question was confusing, but would that work, and not destroy my cycle? because I don't want the hatchets to have to suffer the stress of being in small groups for a few weeks.
Thanks a ton for any advice!!!
 

·
Registered
Joined
·
817 Posts
I am planning to start a 30 gallon tank. I will speed up the cycling process with live plants, some old filter media, and mix in sand from my established tank. I will cycle the tank using two mollies and also some shrimp for algae control.
So, the question: The rule is that you should only add 1-4 fish at a time so that you don't mess up the water chemistry. The fish that will be in this tank are hatchetfish, which absolutely need to be in groups of six or more. SO, since the mollies will return to their own tank once the hatchets are about to go in, will that be ok? hatchetfish have small bio-loads, whereas mollies have big bio-loads. I'd guess that a molly poops 3x as much as a hatchetfish! So, taking out the mollies and shrimp, and adding the 8 hatchets would only change the bioload of the tank by the equivalent of about 3 or 4 fish... right? Sorry if that question was confusing, but would that work, and not destroy my cycle? because I don't want the hatchets to have to suffer the stress of being in small groups for a few weeks.
Thanks a ton for any advice!!!
It worked for me. I traded in 4 adult platys at the same time I picked up 12 Lemon Tetras. I assumed the bigger platys were the same bio load as 6 Tetras so it was like adding 6 Tetras alone. I also have a lot of live plants which is what I counted on to make it possible. No problems. My tank is also well established. Use as many fast growing plants as you can. Test your water daily when you add the hatchets and be ready with the water changes.
 

·
Registered
Joined
·
346 Posts
Discussion Starter #3
Ok, THANKS!
So, I'm also wanting to put 15 tetras and 6-8 kuhlis. They need the comfort of large group company too. So what about when I add them later? I won't have the other fish to switch out. Could I just add six at a time, or is that still too much? Both fish have pretty small bio-loads. I'm planning on it being heavily planted, so will that make it ok for me to add more fish at a time? What are some really fast growing plants?
thanks so much!!!
 

·
Registered
Joined
·
2,010 Posts
Often it is mentioned to add all of one species as it is better on the fish. A too small group of shoaling fish are stressed just due to the small numbers. Somehow it creates less of a load to add more of the same than to split them up... as long as you aren't overdoing it.

Certainly if you are replacing some existing fish then you can count that many out of your new fish count.

Actually, it's a 30 gallon. If it is already cycled (I won't get into plants here....suffice it to say they help) you should be fine. I added 12 barbs in a 37 while doing the "silent" cycle. You could easily add six at a time.

As mentioned, just step up your testing for a while to make sure everything is stable.

Jeff.
 

·
Registered
Joined
·
346 Posts
Discussion Starter #5
What's the 'silent cycle' ?
 

·
Registered
Joined
·
2,010 Posts
Cross post.... fast stems are dwarf hygrophila (I see 1" per day most of the time... although they have slowed down now for some reason...another topic).

There are a few floaters that are great, duckweed , amazon frogbit (I wish I could get that easily but I'll have to order it I think) and water sprite , they are all in the profiles and I am sure there are more. Anubias are popular and can float or be attached to wood or rocks.

Jeff.
 

·
Registered
Joined
·
2,010 Posts
What's the 'silent cycle' ?
Heavily planted, plants suck up the ammonia so it doesn't ever go through the while ammonia, nitrite spike. Jury is still out on that but it is all in another thread. Silent is a term coined due to not seeing the spikes... I would have called it the invisible cycle but I wasn't there to name it.

I'm working out some details on this idea now. I added a fish a few days after setting the tank up then added 12 barbs a week later. I have a theory about how this works that I am working out now as i don't think it as silent as reported to be.

Jeff.
 

·
Registered
Joined
·
346 Posts
Discussion Starter #8
Are dwarf sag or chain sword fast growing? I would like to include a nice, grassy, lawn/carpet plant.
 

·
Registered
Joined
·
2,010 Posts
Are dwarf sag or chain sword fast growing? I would like to include a nice, grassy, lawn/carpet plant.
I don't think so. Substrate rooted plants aren't great ammonia sinks, although they are nice they often take a long time to propagate.

Once you have lots of fast stuff these are great additions for aesthetics though, certainly don't not use them just because they aren't fast growers.

Jeff.
 

·
Registered
Joined
·
817 Posts
Ok, THANKS!
So, I'm also wanting to put 15 tetras and 6-8 kuhlis. They need the comfort of large group company too. So what about when I add them later? I won't have the other fish to switch out. Could I just add six at a time, or is that still too much? Both fish have pretty small bio-loads. I'm planning on it being heavily planted, so will that make it ok for me to add more fish at a time? What are some really fast growing plants?
thanks so much!!!
If you're not switching out fish and still want to add a lot of fish you could add , for instance, a number of small goldfish once a week to increase your bacteria colony. Assuming you can return or rehome the goldfish at the time you pickup your new fish, it would be like nothing changed from a cycle standpoint. You have to decide the type and number of fish as well as the length of time they stay in the tank, but the plan is workable. Fast growing plants I like are Wisteria and Anacharis. They're very easy and will do much good for your tank. The more plants you have the better but keep in mind that fast plants multiply fast so you don't have to buy enough to fill your tank , it will fill itself in time.
 

·
Registered
Joined
·
346 Posts
Discussion Starter #11
How does this sound for some plants?
Jungle vals in the back corner
Anacharis and
Narrow leaf ludwiga in the mid-back area.
Cryptocoryne up towards the front.
Dwarf sag, chain sword,or java moss for 'lawn'.
Driftwood as centerpiece.
The aquascape will have an inverted look.
Do these plants sound good to cycle the tank and look nice together?
Suggestions?
 

·
Registered
Joined
·
346 Posts
Discussion Starter #12
Also, since I'm diong difficult and beginner fish, wich should I add first? Perhaps I should add the hatchets and cories last because they're most expensive. If any disease is introduced, It will be before I buy them so I won't have to worry about the possibility of buying nice fish only to see them die from a cheap fish. Right?
I'm gessing I should add them in this order:
Tetras
shrimp
kuhlis
cories
hatchets
Sound good?
 

·
Registered
Joined
·
2,010 Posts
How does this sound for some plants?
Jungle vals in the back corner
Anacharis and
Narrow leaf ludwiga in the mid-back area.
Cryptocoryne up towards the front.
Dwarf sag, chain sword,or java moss for 'lawn'.
Driftwood as centerpiece.
The aquascape will have an inverted look.
Do these plants sound good to cycle the tank and look nice together?
Suggestions?
While I don't have the list off hand, the anacharis are the best ammonia sink on the list, it sounds like a good plan. The moss is sort of funky to try to get to stay on the bottom as you can't plant it so go with the sag or sword, I'd probably say in that order of choice... of course you could just get both and see which does best in your tank.

Inverted... make sure you post some pics, that sounds interesting.

Jeff.
 

·
Registered
Joined
·
2,010 Posts
Also, since I'm diong difficult and beginner fish, wich should I add first? Perhaps I should add the hatchets and cories last because they're most expensive. If any disease is introduced, It will be before I buy them so I won't have to worry about the possibility of buying nice fish only to see them die from a cheap fish. Right?
I'm gessing I should add them in this order:
Tetras
shrimp
kuhlis
cories
hatchets
Sound good?
Expense isn't really an issue as you are not planning on killing them off, the goal is healthy anyway. Expensive fish can bring in crap as easily as cheap fish. So price is not even a consideration. I would suggest kuhlis and corys last, either order is probably fine but leave as much time between additions as you can, couple of weeks minimum as you want the tank to acclimatize to the fish load before adding the next batch, particularly the more sensitive bottom feeders. Put each group in with the numbers you plan for that species right off, better if they have their numbers up together rather than a small partial group... but I think that was mentioned.

Don't rush it, more time is always better than less.

Jeff.
 

·
Registered
Joined
·
346 Posts
Discussion Starter #15
Well, the hatchets are also most sensitive I think...
Also, I meant concave, not inverted! oops! I just forgot the word when I wrote that!
Thanks!
 

·
Registered
Joined
·
2,010 Posts
I saw some really cool looking hatchets today. I was not a fan of these fish but after watching them in the tank, I wouldn't mind a shoal... although our tank is full now.

Little guys couldn't have been much bigger than 1/2", silver, probably just dwarf hatchetfish

They are a soft water fish too, that wouldn't work.

Jeff.
 
1 - 16 of 16 Posts
Top